I try for carbs under 20g, protein around 75g and the rest fats. Usually that puts me near 75% fat. But mainly I try to stick to this without constant weighing and measuring so there is a good amount of error and day to day variation. - I try to carefully track, weigh and measure for a few days every couple of weeks (to keep myself honest!).
If you're just starting out I wouldn't worry about it - most people lose just fine without having to get terribly specific just following the diet as written.
I'm in my forties and finding the weight is harder to lose and so I'm paying closer attention and trying to manage a lot of details to make the weight loss come fast enough to keep me motivated. So I'm more dialed in to moderate protein, and watching calories as well as carbs, but most people don't need to do this (and I think I'd still lose if I didn't, but it would be slower and right now I need motivation from seeing the scale move...)